diff options
Diffstat (limited to 'lisp/textmodes/fill.el')
| -rw-r--r-- | lisp/textmodes/fill.el | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/lisp/textmodes/fill.el b/lisp/textmodes/fill.el index 8422f0e1dd2..08e975f2355 100644 --- a/lisp/textmodes/fill.el +++ b/lisp/textmodes/fill.el @@ -129,10 +129,11 @@ if it would act as a paragraph-starter on the second line." :type 'regexp :group 'fill) -(defcustom adaptive-fill-function nil - "Function to call to choose a fill prefix for a paragraph, or nil. -A nil value means the function has not determined the fill prefix." - :type '(choice (const nil) function) +(defcustom adaptive-fill-function #'ignore + "Function to call to choose a fill prefix for a paragraph. +A nil return value means the function has not determined the fill prefix." + :version "27.1" + :type 'function :group 'fill) (defvar fill-indent-according-to-mode nil ;Screws up CC-mode's filling tricks. @@ -339,6 +340,18 @@ places." (and (memq (preceding-char) '(?\t ?\s)) (eq (char-syntax (following-char)) ?w))))))) +(defun fill-polish-nobreak-p () + "Return nil if Polish style allows breaking the line at point. +This function may be used in the `fill-nobreak-predicate' hook. +It is almost the same as `fill-single-char-nobreak-p', with the +exception that it does not require the one-letter word to be +preceded by a space. This blocks line-breaking in cases like +\"(a jednak)\"." + (save-excursion + (skip-chars-backward " \t") + (backward-char 2) + (looking-at "[^[:alpha:]]\\cl"))) + (defun fill-single-char-nobreak-p () "Return non-nil if a one-letter word is before point. This function is suitable for adding to the hook `fill-nobreak-predicate', |